# Backend QA Engineer, London at Air Apps

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> Responsibilities: - Design and execute comprehensive tests f

- **Company:** Air Apps (https://jobs.trythestack.co/companies/air-apps)
- **Location:** United Kingdom
- **Work arrangement:** On-site
- **Employment type:** Full-time
- **Experience level:** 2–5 years
- **Visa sponsorship:** Offered, according to the listing
- **Key skills:** Backend Testing, Node.js, TypeScript, API Testing, PostgreSQL, SQL, Postman, Swagger, TestRail, Automation, Integration Testing, Database Integrity, Code Review, Quality Assurance
- **Posted by employer:** 2026-04-16
- **Added to The Stack:** 2026-08-29
- **Status:** May no longer be active (posted more than 60 days ago)
- **Apply:** https://jobs.ashbyhq.com/airapps/6006fdfe-d8ec-473c-9dbd-6de9ce92d5a6 (the employer's own application page)
- **Human page:** https://jobs.trythestack.co/jobs/backend-qa-engineer-london-air-apps

## About the role

Responsibilities:
- Design and execute comprehensive tests for backend systems: APIs, services and DB interactions.
- Validate REST APIs and contracts using Postman/Swagger and automated test frameworks.
- Verify PostgreSQL queries, migrations and data integrity under typical and edge-case conditions.
- Build and maintain automated test suites and CI-integrated testing workflows.
- Review code changes for test coverage and reliability; raise issues early in PRs.
- Track and report defects, test cases and results using TestRail or similar tools.
- Partner with developers and product teams to improve observability and prevent regressions.

Requirements:
- ~2–3 years in backend QA, testing or development-in-test roles.
- Practical experience with Node.js and TypeScript backend stacks.
- Solid SQL knowledge, especially PostgreSQL, and experience validating complex queries.
- Experience with API testing tools (Postman, Swagger) and test management systems.
- Hands-on experience writing automated tests and integrating them into CI pipelines.
- Strong analytical, communication and collaboration skills.

## Responsibilities

The Backend QA Engineer will design and execute tests for backend systems, including APIs, databases, and service integrations. They will also collaborate with engineering teams to review pull requests and maintain automated test suites to ensure high-quality standards.

## Requirements

Candidates should have approximately 2–3 years of experience in backend testing or software development roles. Proficiency in Node.js, TypeScript, and SQL databases like PostgreSQL is required, along with experience using API testing tools.

## FAQ

- **Is this Backend QA Engineer, London role still open?** It was posted on 2026-04-16. Listings more than 30 days old may no longer be active, so check Air Apps's site before applying.
- **Does Air Apps offer visa sponsorship?** This listing is marked as offering visa sponsorship. Eligibility rules are set by the employer, so check the details on Air Apps's site.
- **Where is this role located?** The listing gives the location as United Kingdom. It is marked on-site.
- **What skills does this role ask for?** The listing names: Backend Testing, Node.js, TypeScript, API Testing, PostgreSQL, SQL, Postman, Swagger, TestRail, Automation, Integration Testing, Database Integrity, Code Review, Quality Assurance.

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## About The Stack

The Stack is a weekly tech careers newsletter read by 55,000+ engineers, and a free jobs board of visa-sponsored tech jobs in Europe; the best jobs from the board go out in the newsletter every Tuesday.

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## Notes for agents

- Apply on the employer's page (https://jobs.ashbyhq.com/airapps/6006fdfe-d8ec-473c-9dbd-6de9ce92d5a6). The Stack does not take applications.
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- Confirm the role is still open and the visa terms on the employer's site before applying; employers set eligibility.
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